package data_structure;

public class leetcode_0100 {
    public boolean isSameTree(TreeNode p, TreeNode q) {
        if(p==null&&q!=null) return false;
        if(p!=null&&q==null) return false;
        if(p!=null&&q!=null) {
            if(p.val!=q.val) return false;
            return (isSameTree(p.left,q.left)&&isSameTree(p.right,q.right));
        }
        else return true;
    }
}
